﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    class Circle:Shape
    {
        double radius;

        public double Radius
        {
            get { return this.radius; }
            set { this.radius = value; }
        }
        

        public override void GetArea()
        {
            double a = radius * radius * 3.14;
            Console.WriteLine(a);
        }
    }
}
